Vibrator



Sept. 16, 1952 '--PQUEL| 2,611,015

' VIBRA'I'OR Filed NOV. 8, 1951 2 SHEETS-SHEET l 30 'Harry E, Pouell INVENTOR ATTORNEYS P 1952 H. E. POUELL 2,611,015

VIBRATOR Filed NOV. 8, 1951 2'S1'1EETS-SHEET 2 Harry 1 7. Pouell INVENTOR I I I 7 BY 1 I I I o ATTORNEYS Patented Sept. 16, 1952 UNITED STATES EXTENT OFFICE VIBRATOR Harry'E. Pcuell, Logansport, Ind. Application November 8, 1951, Serial No. 255,434

4 Claims.

This invention relates to a vibrator and has for its primary object to facilitate the mountin of the vibrator in a conventional bayonet-type lamp socket such as is commonly employed in mounting lamps in motor vehicles and other places where they are subject to vibration.

Another object of the invention is to produce a vibrating buzzing sound such as is commonly emitted by a buzzer.

The above and other objects may be attained by employing this invention which embodies among its features a vibrator unit comprising a substantially Z-shaped frame of conducting material, a circular cylindrical projection of conducting material carried by and projecting rearwardly from one of the legs of the Z-shaped frame and adapted to enter the shell of a bayonet-type lamp socket and to effect good electrical contact therewith, a core of magnetically responsive material carried by the aforesaid leg of said Z-shaped frame and projecting inwardly from said leg in substantial axial alignment with the projection, a spool carrying a coiled conductor mounted on the core, a bracket arm of conductive material carried by and projecting outwardly from the end of the spool remote from the aforesaid leg of the frame, a contact carried by said bracket arm and facing the spool, a leaf spring carried by the opposite arm of the frame and extending across the end of the coil adjacent the arm and into the space between the contact and the spool, an armature carried by the spring adjacent the core or Vibrating the spring when the core is magnetically energized and de-energized, one terminal of the coil being electrically connected to the arm, a contact member carried by and electrically isolated from the leg of the frame carrying the projection, and the terminal of the coil opposite that connected to the arm being electrically connected to the contact member.

Other features include an insulator carried by the leg of the frame carrying the projection, a contact member carried by the insulator, and the terminal of the coil opposite that which is connected to the arm being electrically connected to the contact member.

In the drawings,

Fig. l. is an end View of a vibrator embodying the features of this invention,

Fig. 2 is a side view of the vibrator illustrated in Fig. 1,

Fig. 3 is a rear end view of the vibrator illustrated in Fig. 1,

Fig. 4 is a top plan view of the vibrator illustrated in Fig. 1,

will hereinafter appear.

Fig. 5 is a front view in elevation of a modified form of vibrator,

Fig. 6 is a side view of the vibrator illustrated in Fig. 5,

Fig. 7 is a rear end view of the vibrator illustrated in Fig. 5, and

Fig. 8 is a top plan view of the vibrator illustrated in Fig. 5.

Referring to the drawings in detail this improved vibrator comprises a substantially Z- shaped frame designated generally it which comprises an intermediate portion 12 having oppositely extending legs I4 and IE at opposite ends thereof. The Z-shaped frame ii] is prefer-ably of con-= ducting material and has secured to the leg M and projecting therefrom in a direction opposite the intermediate portion 12 a circular cylindrical member 18 of tubular form which carries at its end remote from that attached to the leg it an insulator 20 through which extends a contact member 22. Formed in the side of the tubular member 13 and communicating with th interior thereof is an opening 24, the purpose of which In the preferred form of the invention the cylindrical member :3 is provided with radially extending lugs 26 which are adapted to engage in bayonet slots in a con ventional lamp socket of the type commonly employed in places where the lamps are subject to vibration.

Carried by the leg 14 in axial alignment with the tubular body l8 and lying parallel to the in termediate portion [2 of the Z-sh-aoed frame it is a core 28 of magnetically responsive material upon which is mounted a spool 35! carrying a coil 32 of conductive material such as insulated copper wire. A bracket arm 34 of inverted U-shape is carried by the spool 39 at the end thereof remote from the leg 14 of the Z-shaped frame It and this arm 34 carries a contact member 35 which faces the spool 30 as will be readily understood upon reference to Fig. 2. One end of the coil is soldered as at 38 to the bracket arm 34 and the opposite end of the coil 32 is carried through a suitable insulating sleeve 41} and into the interior of the tubular member 18 to be soldered or otherwise electrically coupled to the contact 22.

Fixed to the arm 16 of the Z-shaped frame iii and extending transversely across the end of the spool 30 into the space between the contact and the end of the spool 30 carrying the bracket 34 is a leaf spring 42 carrying intermediate its ends an armature 44 which projects across the end of the core 28 remote from the arm IA of the frame It, and carried by the leaf spring A2 adiacent the end thereof remote from that which is attached to the arm I6 is a contact member 46 which is normally held by the leaf spring (52 in engagement with the contact member 33 to complete an electrical circuit through the coil 32. It will thus be seen that when the contact members 36 and 48 are in engagement, the end of the coil which is connected as at 38 to the bracket arm 34 will be grounded so that when the device is mounted in a conventional bayonet type lamp socket as suggested in Fig. 2, electrical energy will be conducted through the center contact of the lamp socket to the contact member 22 and thence to the coil 32 while the sleeve It being of conducting material is grounded to the shell of the lamp socket. Thus by energizing the lamp socket, it is evident that the coil 32 will energize the core 28 to attract the armature 44 and move the contact member 46 out of engagement with the contact member 36 to discontinue the flow of electrical energy through the coil 32 and thus permit the armature A l and contact 46 to move under the influence of the spring 42 into engagement with the contact 36 to thereby re-establish the flow of energy through the coil 32. This cycle is repeated as in any conventional vibrator so long as the lamp socket in which the device is mounted is energized.

In the modified form of the invention illustrated in Figs. 5 through 8 inclusive, a substantially Z-shaped frame designated generally &8 comprises an intermediate portion 56 having at opposite ends oppositely extending legs 52 and 54. The leg 52 has secured thereto and extending outwardly therefrom in a direction opposite the mid portion 50 a circular cylindrical body 56 of conductive material which is adapted to be connected by a screw 56' to one terminal of a source of electrical energy. A core .of magnetically responsive material 58 is carried by the leg 52 in axial alignment with the cylindrical body 56 and in parallel relation to the mid portion 59 of the frame 48, and surrounding said core 58 is a spool 68 around which is wound a coil of insulated conductor 62. adjacent the leg 52 of the frame 48 is provided with a lateral extension 64 carrying an inverted U-shaped supporting arm 66 in which a binding screw 68 is threadedly mounted. One terminal of the coil 62 is electrically connected at 19 to the member 66, and carried by the spool 66 at the end thereof remote from the arm 52 of the frame 48 is an inverted U-shaped bracket arm 12 of conductive material to which the opposite terminal of the coil 62 is soldered or otherwise electrically connected as at '14. Like the bracket arm 34 previously described, the bracket arm 12 carries a contact member it which faces the spool 50.

Riveted or otherwise secured to the leg 54 of the Z-shaped frame 68 is a leaf spring 18 which extends transversely across the end of the spool The end of the spool 69 iii remote from the leg 52 and carries intermediate its ends an armature 80 which lies across the end of the core 58 remote from the leg 55 of the frame 48 so that when the core is magnetically excited, the armature will be attracted thereto against the effort of the spring '78. A contact 82 is carried by the leaf spring l8 adjacent the inverted U-shaped frame 2 for engagement with the contact is when the core 58 is de-energized.

It will thus be seen that when the cylindrical member 56 is mounted in a conventional lamp socket, it will contact the shell thereof and ground the Z-shaped frame 48. Upon coupling a live conductor to the binding screw 68, it will be evident that the coil 62 will become energized so as to excite the core 58 and attract the armature 89 to disengage the contacts 16 and 13 whereupon de-energization of the coil will result. In this way the contacts 15 and 82 will make and break the circuit through the coil 62 to alternately energize and de-energize the magnet 53 and produce a buzzing sound.

By utilizing the cylindrical portions 18 and 55 as the grounding contacts for the frames it or 48, it is obvious that the device may be conveniently mounted in a conventional bayonet type lamp socket and will function to produce an audible buzzing noise which may be utilized as a warning signal on a motor vehicle or the like.

While in the foregoing there has been shown and described the preferred embodiment of this invention it is to be understood that minor changes in the details of construction, combination, and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

What is claimed is:

l. A vibrator unit adapted to be mounted in a conventional bayonet type lamp socket comprising a substantially Z-shaped frame of conducting material, a circular cylindrical projection of conductive material carried by and projecting outwardly from one of the legs of the Z-shaped frame and adapted to enter the shell of a bayonet type lamp socket and to effect good electrical contact therewith, a core of magnetically responsive material carried by the aforesaid leg of said Z-shaped frame and projecting inwardly from said leg in substantially axial alignment with the projection, a spool carrying a coiled conductor mounted on the core, a bracket arm of conductive material carried by and projecting outwardly from the end of the spool remote from the aforesaid leg of the frame, a contact carried by said bracket and facing the spool in spaced relation thereto, a leaf spring carried by the opposite arm of the frame and extending across the end of the core adjacent the arm and into the space between the contact and the spool, an armature carried by the spring adjacent the core for vibrating the spring when the core is magnetically energized and ole-energized, one terminal of the coil being electrically connected to the arm, a contact member carried by and electrically isolated from the eg of the frame carrying the projection, and the terminal of the coil opposite that connected to the arm being electrically connected to the con= tact member.

2. A vibrator unit adapted to be mounted in a conventional bayonet type lamp socket comprising a substantially Z-shaped frame of conducting material, a circular cylindrical projection of conductive material carried by and projecting outwardly from one of the legs of the Z-shaped frame and adapted to enter the shell of a bayonet type lamp socket and to effect good electrical contact therewith, a core of magnetically responsive material carried by the aforesaid leg of said Z-shaped frame and projecting inwardly fromsaid leg in substantially axial alignment with the projection, a spool carrying a coiled conductor mounted on the core, a bracket arm of conductive material carried by and projecting outwardly from the end of the spool remote from the aforesaid leg of the frame, a contact carried said bracket arm and facing the spool in spaced relation thereto, a leaf spring carried by the opposite arm of the frame and extending across the end of the core adjacent the arm and into the space between the contact and the spool, an armature carried by the spring adjacent the core for vibrating the spring when the core is magnetically energized and de-energized, one terminal of the coil being electrically connected to the arm, an insulator carried by the leg of the frame carrying the projection, a contact member carried by the insulator, and the terminal of the coil opposite that which is connected tothe arm being electrically connected to the contact memher.

3. A vibrator unit adapted to be mounted in a conventional bayonet type lamp socket comprising a substantially Z-shaped frame of conducting material, a circular cylindrical projection of conductive material carried by and projecting outwardly from one of the legs of the Z-shaped frame and adapted to enter the shell of a bayonet type lamp socket and to effect good electrical contact therewith, a core of magnetically responsive material carried by the aforesaid leg of said Z-sh-aped frame and projecting inwardly from said leg in substantially axial alignment with the projection, a spool carrying a coiled conductor mounted on the core, a bracket arm of conductive material carried by and projecting outwardly from the end of the spool remote from the aforesaid leg of the frame, a contact carried by said bracket arm and facing the spool in spaced relation thereto, a leaf spring carried by the opposite arm of the frame and extending across the end of the core adjacent the arm and into the space between the contact and the spool, an armature carried by the spring adjacent the core for vibrating the spring when the core is magnetically energized and de-energized, one terminal of the coil being electrically connected to the arm, an insulator carried by the projection adjacent the end thereof remote from the frame, a contact member carried by and extending through the insulator, and the terminal of the coil remote from that which is connected 6 to the arm being electrically connected to the contact member.

4. A vibrator unit adapted to be mounted in a conventional bayonet type lamp socket comprising a substantially Z-shaped frame of conducting material, a circular cylindrical projection of conductive material carried by and projecting outwardly from one of the legs of the Z-shaped frame and adapted to enter the shell of a bayonet type lamp socket and to effect good electrical contact therewith, a core of magnetically responsive material carried by the aforesaid leg of said Z-shaped frame and projecting inwardly from said leg in substantially axial alignment with the projection, a spool carrying a coiled conductor mounted on the core, a bracket arm of conductive material carried by and projecting outwardly from the end of the spool remote from the aforesaid leg of the frame, a contact carried by said bracket arm and facing the spool in spaced relation thereto, a leaf spring carried by the opposite arm of the frame and extending across the end of the core adjacent the arm and into the space between the contact and the spool, an armature carried by the spring adjacent the core for vibrating the spring when the core is magnetically energized and de-energized, one terminal of the coil being electrically connected to the arm, an insulator carried by the frame between the spool and the leg carrying the proj ection, a contact member carried by the insulator in spaced relation to the spool, and the terminal of the coil opposite that which is connected to the arm being electrically connected to the contact member.

HARRY E. POUELL.

REFERENCES CITED UNITED STATES PATENTS Name Date Nicorvo May 10, 1949 Number 

